First off, a massive thank you to you guys (and OCUK) who helped me build my new computer recently. I couldn't have done it without the help of this forum 
However, my OLD computer (vintage 2004) recently had serious hard drive problems and I'm looking to replace the drive with a new, more reliable one for a fresh install of Windows XP.
Not really being familiar with old hard drives, have you guys got any suggestions / pointers when choosing a drive suitable for the build? I'm looking to order tonight, or maybe tomorrow, cause it's kinda urgent.
The spec:
So, if someone could provide a link or model number of a replacement that would be awesome. (Looking for roughly the same capacity)

However, my OLD computer (vintage 2004) recently had serious hard drive problems and I'm looking to replace the drive with a new, more reliable one for a fresh install of Windows XP.
Not really being familiar with old hard drives, have you guys got any suggestions / pointers when choosing a drive suitable for the build? I'm looking to order tonight, or maybe tomorrow, cause it's kinda urgent.
The spec:
- Mobo: Gigabyte GA-7N400E
- Current Hard Drive: "120Gb 8Mb Cache" (and that's all it says on the spec, I didn't build this one)
So, if someone could provide a link or model number of a replacement that would be awesome. (Looking for roughly the same capacity)